Die set



A. GRUNOW DIE SET Aug, 1&19546.

Original Filed April '5, 1945 INVENTOR.

?atented Aug. 1 3, 1946 4 Claims.

My invention relates to improvements in die sets and especially, hasreference to and is illustrated in the accompanying drawing as appliedto the guide post bearings thereof, which bearings are adjustablelongitudinally and rotationally, thereby providing for the taking up ofwear and insuring more correct and uniform action. This application is adivision of my co-pending patent application Ser. No. 586,794.

Referring to said drawing, Fig. 1 illustrates in front elevation, partsbeing broken away, a portion of one side of a die set embodying anapplication of my invention, and Fig. 2 is an enlarged detail of theupper portion thereof.

l indicates the die-shoe or holder in which is secured the guide post 2,and 3, 4% indicate the nut and jam-nut respectively, threadably engagingthe bushing 55, slotted alternately from top and bottom as shown at t,i, said bushing being threaded externally as indicated at 3. The bushingis seated in tapered hole 9 in the punch holder Ill, and guides itstravel or reciprocation on guide post 2, annular grooves ll serving toretain the grease or lubrication therefor.

In applying my invention, the punch holder it with its bearing bushing 9is pushed down on guide post 2, over which nuts 3 and t have alreadybeen dropped. These nuts are then engaged and tightened upon the lowerthreaded end of the bushing, nut 3 being first tightened against theunderside of the holder plate I!) and then look nut l.

Any wear developing between the post 2 and bushing 5 may be taken up bynuts 3 and 4, and any unevenness or lateral wear due to slightmisalignment, may be rectified by rotating the bushing 5 beforetightening nuts 3, 4. Thus simple, quickly adjustable, and inexpensivemeans are provided for safeguarding the die from undue wear, destructivelateral distortion and for ex- 2 pensive repairs causing suspension ofits operation.

Of course it will be understood that various modifications may be madein the construction and arrangement of parts without departing from thespirit of the invention as claimed.

- I claim:

1. A die set having movable and immovable parts, guide posts securedtherebetween, tapered holes in one of said parts in alignment with saidpost's, tapered bearings in said holes surrounding said posts, saidbearings being contractable to take up the wear between said posts andsaid bearings, and means for adjusting said bearings.

2. A die set having movableand immovable parts, guide posts securedtherebetween, tapered holes in one of said parts in alignment with saidposts, tapered bearings in said holes surrounding said posts, saidbearings being contractable to take up the wear between said posts andsaid bearings, and external means for adjusting said bearings.

3. A die set having movable and immovable parts, guide posts securedtherebetween, tapered holes in one of said parts in alignment with saidposts, tapered bearings in said holes surrounding said posts, saidbearings being contracta-ble to take up the wear between said posts andsaid bearings, and means for adjusting said bearings longitudinally androtatably.

4. A die set having movable and immovable parts, guide posts securedtherebetween, tapered holes in one of said parts in alignment with saidposts, tapered hearings in said holes surrounding said posts, saidbearings being contractable to take up the wear between said posts andsaid bearings, and threadably engaging means for drawing saidcontractable bearings .axially through said tapered holes.

ALFRED GRUNOW.

